v2: https://lore.kernel.org/lkml/20230721120046.2262291-1-iii@xxxxxxxxxxxxx/ v2 -> v3: Add comments, improve the commit messages (Christian, David). Add R-bs. Patches that need review: [4/6], [6/6]. v1: https://lore.kernel.org/lkml/20230629083452.183274-1-iii@xxxxxxxxxxxxx/ v1 -> v2: Fix three more issues. Add selftests (Claudio). Hi, I tried to compare the behavior of KVM and TCG by diffing instruction traces, and found five issues in KVM related to stepping into interrupt handlers. Best regards, Ilya Ilya Leoshkevich (6): KVM: s390: interrupt: Fix single-stepping into interrupt handlers KVM: s390: interrupt: Fix single-stepping into program interrupt handlers KVM: s390: interrupt: Fix single-stepping kernel-emulated instructions KVM: s390: interrupt: Fix single-stepping userspace-emulated instructions KVM: s390: interrupt: Fix single-stepping keyless mode exits KVM: s390: selftests: Add selftest for single-stepping arch/s390/kvm/intercept.c | 40 ++++- arch/s390/kvm/interrupt.c | 14 ++ arch/s390/kvm/kvm-s390.c | 27 ++- tools/testing/selftests/kvm/Makefile | 1 + .../testing/selftests/kvm/s390x/debug_test.c | 160 ++++++++++++++++++ 5 files changed, 230 insertions(+), 12 deletions(-) create mode 100644 tools/testing/selftests/kvm/s390x/debug_test.c -- 2.41.0
